In February, a new vendor appeared at the weekly farmers’ market in this southern Bay Area town. Pete McCloskey, a soft-spoken 78-year-old farmer with a thatch of unruly gray hair, stood before a folding table flanked by bags of organic oranges. But McCloskey wasn’t pushing fresh fruit; he was hawking his homegrown politics.

What started as a weekly or so blog about bikes in the city has grown to become a regular column in the Metropolitan section of the paper, and online. Below are some recent pieces about the culture, politics and style of urban cycling with a New York twist.

Like thousands of other New Yorkers, Jason Henkle throws a leg over a bicycle every day and pedals to work. Unlike most of his fellow riders, Mr. Henkle built his understated single-speed bike by hand.